3D printing part and post-processing method and preparation method thereof

Abstract

The invention relates to a 3D printing part and a post-processing method and preparation method thereof. The post-processing method comprises the following steps of providing the molding 3D printing part, and keeping and finalizing the 3D printing part on a bearing plate used during molding; and placing the 3D printing part together with the bearing plate in a vacuum environment or a protective gas atmosphere for heat treatment. The 3D printing part and the post-processing method and preparation method thereof adopt a mode of placing the molding 3D printing part together with the bearing platein the vacuum environment or the protective gas atmosphere for heat treatment, and the bearing plate is used to finalize the 3D printing part to prevent the 3D printing part from deforming, so that the heat treatment is carried out under the condition of keeping and finalizing of the 3D printing part; and the internal stress of the 3D printing part is eliminated after heat treatment, and the final 3D printing part cannot deform due to the elimination of the internal stress, so that the subsequent processing accuracy is ensured.

Description

technical field [0001] The invention belongs to the field of 3D printing, and in particular relates to a 3D printing part, a post-processing method and a preparation method thereof. Background technique [0002] Traditional production uses the combination of molten wax liquid and gypsum dental molds, making wax patterns by hand, and then casting corresponding products by lost wax method; wax pattern casting can also be used to generate wax patterns through 3D printers, and the wax patterns can be made from wax patterns The corresponding products are obtained by lost-wax casting. These two methods belong to the indirect method of making metal crowns, and there are many intermediate processes. [0003] With the development and application of metal 3D printing technology, more and more products such as inlays, onlays, crowns or bridges are prepared by 3D printing. However, during the 3D printing process, it is easy to generate internal stress in the 3D printed parts, which wi...

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a 3D printed part and its post-processing method and preparation method, which can effectively eliminate the internal stress and deformation caused by the 3D printed part during the preparation process, so as to prevent the 3D printed part from affecting the subsequent processing accuracy due to deformation.

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